/Engine/Plugins/Developer/Concert/ConcertMain/Source/Concert/Public/IConcertServerEventSink.h
OnLiveSessionCreated will be called if this restoration was successful.
bool RestoreSession ( const [IConcertServer](API\Plugins\ConcertServer\IConcertServer) & InServer, const [FGuid](API\Runtime\Core\Misc\FGuid) & InArchivedSessionId, const [FString](API\Runtime\Core\Containers\FString) & InLiveSessionRoot, const [FConcertSessionInfo](API\Plugins\Concert\FConcertSessionInfo) & InLiveSessionInfo, const [FConcertSessionFilter](API\Plugins\Concert\FConcertSessionFilter) & InSessionFilter )